23194813525 has 12 divisors (see below), whose sum is σ = 30973997572. Its totient is φ = 17128477440.

The previous prime is 23194813463. The next prime is 23194813541. The reversal of 23194813525 is 52531849132.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 9864263761 + 13330549764 = 99319^2 + 115458^2 .

It is not a de Polignac number, because 23194813525 - 2²³ = 23186424917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35684004 + ... + 35684653.

Almost surely, 2^23194813525 is an apocalyptic number.

23194813525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23194813525 is a deficient number, since it is larger than the sum of its proper divisors (7779184047).

23194813525 is a wasteful number, since it uses less digits than its factorization.

23194813525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71368680 (or 71368675 counting only the distinct ones).

The product of its digits is 259200, while the sum is 43.

The spelling of 23194813525 in words is "twenty-three billion, one hundred ninety-four million, eight hundred thirteen thousand, five hundred twenty-five".